2. It is a technique used heat to separate homogeneous mixtures where there is one or more dissolved substance. 3. It is the process of separating an insoluble solid from the liquid substance by allowing the liquid to pass through a porous material.
4. Solutions or gases pass through the filter but particles which cannot fit through the filter are trapped by it.
5. is useful in mining iron and in many process industries to remove metal contaminants from product streams.
6. In this method, the liquid may be poured slowly to leave the solid particles. 7. Smaller particles when mixed with other materials tend to settle at the bottom leaving the larger materials in a strainer.​